Acceleration where velocity is changing

1. Feb 8, 2006

tandoorichicken

How would one describe the acceleration (linear and angular) if the velocity is constant but direction is constantly changing, i.e., circular motion?

2. Feb 8, 2006

Fermat

If the velocity (circumferential speed) is constant and motion is in a circle, then the acceleration is called centripetal acceleration.
Since the velocity is constant, then there is no linear (i.e. tangential) acceleration, or angular acceleration.

3. Feb 8, 2006

tandoorichicken

Thanks fermat, so this means that both angular acceleration and the tangential acceleration = 0?

4. Feb 8, 2006

Fermat

If the peripheral velocity is constant,then that's right, yes.